Novel Ammoxidation Catalysts based on Vanadium Containing Oxynitrides
Impact of Structure on the Catalytic Performance
Seiten
2012
|
1., Aufl.
Cuvillier Verlag
978-3-95404-037-7 (ISBN)
Cuvillier Verlag
978-3-95404-037-7 (ISBN)
- Titel ist leider vergriffen;
keine Neuauflage - Artikel merken
The potential of a new catalyst class based on vanadium containing oxynitrides has been explored in the ammoxidation of 3-picoline (3-PIC) to 3-cyanopyridine (3-CP). So far, mixed oxides of the type SbVTiSiO belong to the best catalysts for this reaction, however, space-time yields (STY) did not exceed 150 g/lh. Improving STY while maintaining high 3-CP selectivity would be energetically most sustainable. Therefore, ternary VAlZrON and VZrPON, binary VMoON and VSbON oxynitrides as well as VMON/MoxOyNz (M = Al or Zr) catalysts have been investigated for their catalytic performance and structure-reactivity relationships. With VZrAlON catalysts, highest STY values ever measured have been obtained, while VSbON catalysts bear a great potential, too. By spectroscopic multimethod analysis, applied ex and in situ, structure-reactivity relationships have been proposed. The presence of direct V-N junctions and anionic surface defects are essential for high nitrile selectivity. This is the best fulfilled for VZrAlON, VMoON and VSbON catalysts.
Sprache | englisch |
---|---|
Einbandart | kartoniert |
Themenwelt | Naturwissenschaften ► Chemie |
Schlagworte | catalyst • Catalytic Performance • Vanadium Containing Oxynitrides |
ISBN-10 | 3-95404-037-9 / 3954040379 |
ISBN-13 | 978-3-95404-037-7 / 9783954040377 |
Zustand | Neuware |
Haben Sie eine Frage zum Produkt? |
Mehr entdecken
aus dem Bereich
aus dem Bereich
Buch (2024)
Deutsche Vereinigung für Wasserwirtschaft, Abwasser und … (Verlag)
52,00 €